HPlogo MPE/iX Developer's Kit Reference Manual Volume 2: HP 3000 MPE/iX Computer Systems

Chapter 2 SVID IPC Library Function Descriptions

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Table of Contents

Overview of SVID IPC
Message queues
Shared memory
Semaphores
Access control
Using the SVID IPC Library
Managing SVID IPC Services
IPCS utility
IPCRM utility
SVIPC utility
Conformance and Implementation Considerations
SVID IPC Library Function Descriptions
ftok
Syntax
Parameters
Return Values
Description
Implementation Considerations
Errors
See Also
msgctl
Syntax
Parameters
Return Values
Description
Implementation Considerations
Errors
See Also
msgget
Syntax
Parameters
Return Values
Description
Implementation Considerations
Errors
See Also
msgrcv
Syntax
Parameters
Return Values
Description
Implementation Considerations
Errors
See Also
msgsnd
Syntax
Parameters
Return Values
Description
Implementation Considerations
Errors
See Also
semctl
Syntax
Parameters
Return Values
Description
Implementation Considerations
Errors
See Also
semget
Syntax
Parameters
Return Values
Description
Implementation Considerations
Errors
See Also
semop
Syntax
Parameters
Return Values
Description
Implementation Considerations
Errors
See Also
shmat
Syntax
Parameters
Return Values
Description
Implementation Considerations
Errors
See Also
shmctl
Syntax
Parameters
Return Values
Description
Implementation Considerations
Errors
See Also
shmdt
Syntax
Parameters
Return Values
Description
Implementation Considerations
Errors
See Also
shmget
Syntax
Parameters
Return Values
Description
Implementation Considerations
Errors
See Also
SVID IPC Header Descriptions
sys/ipc.h
Macros
Functions
Types
Structures
sys/msg.h
Macros
Functions
Structures
sys/sem.h
Macros
Functions
Structures
sys/shm.h
Macros
Functions
Structures

This chapter describes a set of C/iX library functions that provides interprocess communication services to applications requiring information exchange and resource synchronization between multiple processes.

These C/iX library functions emulate the behavior of a set of interprocess communication and synchronization functions defined by the AT&T System V Interface Definition (SVID2). For this reason, the set of IPC functions provided in the MPE/iX Developer's Kit is referred to as "SVID IPC."

This chapter in organized in the following manner:

  • Overview of the SVID IPC facilities

  • Using the SVID IPC library

  • Managing SVID IPC services

  • Conformance and implementation considerations

  • Detailed descriptions of SVID IPC functions

  • Descriptions of SVID IPC headers

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